Home / 905,614.86-1,249,778.46-497,731.17

Finding the Fourth Proportional to 905,614.86, 1,249,778.46 and 497,731.17

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Solution

The fourth proportional to 905,614.86, 1,249,778.46 and 497,731.17 is: 686,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,614.86 : 1,249,778.46 = 497,731.17 : x
  2. Step 2: Convert to fraction form
    905,614.86/1,249,778.46 = 497,731.17/x
  3. Step 3: Cross multiply
    905,614.86x = 1,249,778.46 × 497,731.17
  4. Step 4: Simplify right side
    905,614.86x = 622,053,695,136.60
  5. Step 5: Solve for x
    x = 622,053,695,136.60/905,614.86
  6. Step 6: Final answer
    x = 686,885.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.